Dragline bucket guard



Nov. 4, 1941. l v, DAUSMAN 2,261,233

DRAGLINE BUCKET GUARD A orney Nov. 4, 1941.

V. DAUSMAN 2,261,233 DRAGLIANE BUCKET GUARD Filed Nov. 18, 1940 2 Sheets-SheetI 2 Q l I I /0 v f f Attorney Patented Nov. 4, 1941 STTES ATENT OFFICE 2 Claims.

The present invention relates to new and useful improvements in dragline buckets particularly for underwater work. The primary object of the invention is to provide, in a manner as hereinafter set forth, a guard embodying a novel construction and arrangement for retaining the marl or other material in the dragline bucket and for increasing the efficiency of said bucket in general.

Another very important object of the invention is to provide a guard of the character described which is adapted to be expeditiously mounted for use on a conventional dragline bucket without the necessity of making material structural alterations in said bucket.

Other objects of the invention are to provide a dragline bucket guard which will be comparatively simple in construction, strong, durable, compact, light in weight and which may be manufactured at low cast.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is a view in front elevation of a dragline bucket equipped with a guard constructed in accordance with the present invention.

Figure 2 is a view in side elevation thereof.

Figure 3 is a top plan View of the guard.

Figure 4 is a View in rear elevation of the guard.

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a substantially U-shaped frame I which may be of any suitable metal. The frame I is mounted on the upper portion of a dragline bucket 2 in a manner to extend around the back and sides thereof. Bolted metallic straps or bars 3 rigidly secure the substantially U-shaped frame I in position on the dragline bucket 2.

Extending between the front end portions of the frame I is a forwardly extending metallic arch 4. The arch 4 is bolted at 5 to the usual arch 6 on the forward end of the dragline bucket 2. The arch 4 is also secured firmly to the frame I at l.

Mounted on the arch 4 and the frame I is a plurality of spaced, longitudinal metallic bars 8. The forward end portions of thelbars 8 are secured at 9 to the arch 4. The bars 8 terminate in downturned rear end portions I0 which are iirmly secured at II to the rear or bight portion of the substantially U-shaped frame I.

It is thought that the manner in which the guard functions will be readily apparent from a consideration of the foregoing, particularly to those skilled in the art to which the invention pertains. Briefly, the guard prevents the material from plowing over the bucket and materially increases the capacity of said bucket by retaining said material therein. The spaced, longitudinal bars 8 permit the water to escape freely from the bucket as the material is forced thereinto thus eliminating all excessive water and permitting the operator to pile the material on a comparatively small area owing to the fact that the tendency to spread and run is greatly reduced. The use of the guard of this invention also causes the bucket, when it becomes full, to rise and slide over the material until it is picked It is believed that the many advantages of a dragline bucket guard constructed in accordance with the present invention will be readily understood and although a preferred embodiment of the device is `as illustrated and described, it is to be understood that changes in the details of construction and in the construction and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

l. A guard for a dragline bucket comprising a substantially U-shaped frame mounted on an upper portion of the bucket and extending around the rear and sides thereof, an arch connecting the forward end portions of the frame and secured to the bucket, and a plurality of spaced, longitudinal bars having one end secured to the arch and the other end secured to the rear portion of the frame.

2. A dragline bucket guard comprising a unitary structure including a frame for mounting on a bucket, an arch traversing the frame and secured thereto, and a plurality of spaced, substantially parallel bars having their end portions secured to said arch and said frame.

VERN DAUSMAN. 

